Dear Downunder: +++++ " That said, there is a certain amount of life,flow or air that not using the outer ring gives to the music. Not sure if that "air" is also missing when you use a vacuum hold?? " +++++
That was one of my first impresions when ( many years ago ) I try for the very first time the Vacuum hold down record but I learn that that " air " was not a real sound in the recording but most a distortion part with out Vacuum.
The truest to the music is something that no other system I know can give you in the same natural way that do the Vacuum.
The quality sound reproduction with and with out Vacuum is not only an improvement but almost an order of magnitude against no Vacuum.
You have to try it to understand all its benefits.
Regards and enjoy the music.
Raul.